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duplication - definition and synonyms

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noun [uncountable]     duplication pronunciation in British English
/ˌdjuːplɪˈkeɪʃ(ə)n/
  1. 1
    a situation in which one thing has the same purpose or effect as another and is therefore not necessary

    We’re hoping the new procedures will avoid duplication of effort.

  2. 2
    the process of making an exact copy of something

    printing and duplication costs

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a combination of a hotdog and a hamburger in a specially designed bread bun

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a volume of articles, essays, etc., contributed by many authors in honor of a colleague, usually published on the occasion of their retirement, an important anniversary and the like

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